[alsa-devel] [PATCH v1 3/4] ASoC: rockchip: i2s: add other configurable formats

[Sugar Zhang]

From: zhangjun <zhangjun at rock-chips.com>

simple-audio-card,bitclock-inversion = <1> : bclk falling edge taken
simple-audio-card,format = "dsp_a" : pcm no delay mode
simple-audio-card,format = "dsp_b" : pcm late 1 mode

Signed-off-by: zhangjun <zhangjun at rock-chips.com>
Signed-off-by: Sugar Zhang <sugar.zhang at rock-chips.com>
---

 sound/soc/rockchip/rockchip_i2s.c | 30 ++++++++++++++++++++++++++++--
 sound/soc/rockchip/rockchip_i2s.h |  3 +++
 2 files changed, 31 insertions(+), 2 deletions(-)

diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
index 220232b..2a15a00 100644
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
@@ -207,7 +207,21 @@ static int rockchip_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
 
 	regmap_update_bits(i2s->regmap, I2S_CKR, mask, val);
 
-	mask = I2S_TXCR_IBM_MASK;
+	mask = I2S_CKR_CKP_MASK;
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF:
+		val = I2S_CKR_CKP_NEG;
+		break;
+	case SND_SOC_DAIFMT_IB_NF:
+		val = I2S_CKR_CKP_POS;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	regmap_update_bits(i2s->regmap, I2S_CKR, mask, val);
+
+	mask = I2S_TXCR_IBM_MASK | I2S_TXCR_TFS_MASK | I2S_TXCR_PBM_MASK;
 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 	case SND_SOC_DAIFMT_RIGHT_J:
 		val = I2S_TXCR_IBM_RSJM;
@@ -218,13 +232,19 @@ static int rockchip_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
 	case SND_SOC_DAIFMT_I2S:
 		val = I2S_TXCR_IBM_NORMAL;
 		break;
+	case SND_SOC_DAIFMT_DSP_A: /* PCM no delay mode */
+		val = I2S_TXCR_TFS_PCM;
+		break;
+	case SND_SOC_DAIFMT_DSP_B: /* PCM delay 1 mode */
+		val = I2S_TXCR_TFS_PCM | I2S_TXCR_PBM_MODE(1);
+		break;
 	default:
 		return -EINVAL;
 	}
 
 	regmap_update_bits(i2s->regmap, I2S_TXCR, mask, val);
 
-	mask = I2S_RXCR_IBM_MASK;
+	mask = I2S_RXCR_IBM_MASK | I2S_RXCR_TFS_MASK | I2S_RXCR_PBM_MASK;
 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 	case SND_SOC_DAIFMT_RIGHT_J:
 		val = I2S_RXCR_IBM_RSJM;
@@ -235,6 +255,12 @@ static int rockchip_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
 	case SND_SOC_DAIFMT_I2S:
 		val = I2S_RXCR_IBM_NORMAL;
 		break;
+	case SND_SOC_DAIFMT_DSP_A: /* PCM no delay mode */
+		val = I2S_RXCR_TFS_PCM;
+		break;
+	case SND_SOC_DAIFMT_DSP_B: /* PCM delay 1 mode */
+		val = I2S_RXCR_TFS_PCM | I2S_RXCR_PBM_MODE(1);
+		break;
 	default:
 		return -EINVAL;
 	}
diff --git a/sound/soc/rockchip/rockchip_i2s.h b/sound/soc/rockchip/rockchip_i2s.h
index 31f11fd..a7b8527 100644
--- a/sound/soc/rockchip/rockchip_i2s.h
+++ b/sound/soc/rockchip/rockchip_i2s.h
@@ -41,6 +41,7 @@
 #define I2S_TXCR_TFS_SHIFT	5
 #define I2S_TXCR_TFS_I2S	(0 << I2S_TXCR_TFS_SHIFT)
 #define I2S_TXCR_TFS_PCM	(1 << I2S_TXCR_TFS_SHIFT)
+#define I2S_TXCR_TFS_MASK	(1 << I2S_TXCR_TFS_SHIFT)
 #define I2S_TXCR_VDW_SHIFT	0
 #define I2S_TXCR_VDW(x)		((x - 1) << I2S_TXCR_VDW_SHIFT)
 #define I2S_TXCR_VDW_MASK	(0x1f << I2S_TXCR_VDW_SHIFT)
@@ -70,6 +71,7 @@
 #define I2S_RXCR_TFS_SHIFT	5
 #define I2S_RXCR_TFS_I2S	(0 << I2S_RXCR_TFS_SHIFT)
 #define I2S_RXCR_TFS_PCM	(1 << I2S_RXCR_TFS_SHIFT)
+#define I2S_RXCR_TFS_MASK	(1 << I2S_RXCR_TFS_SHIFT)
 #define I2S_RXCR_VDW_SHIFT	0
 #define I2S_RXCR_VDW(x)		((x - 1) << I2S_RXCR_VDW_SHIFT)
 #define I2S_RXCR_VDW_MASK	(0x1f << I2S_RXCR_VDW_SHIFT)
@@ -91,6 +93,7 @@
 #define I2S_CKR_CKP_SHIFT	26
 #define I2S_CKR_CKP_NEG		(0 << I2S_CKR_CKP_SHIFT)
 #define I2S_CKR_CKP_POS		(1 << I2S_CKR_CKP_SHIFT)
+#define I2S_CKR_CKP_MASK	(1 << I2S_CKR_CKP_SHIFT)
 #define I2S_CKR_RLP_SHIFT	25
 #define I2S_CKR_RLP_NORMAL	(0 << I2S_CKR_RLP_SHIFT)
 #define I2S_CKR_RLP_OPPSITE	(1 << I2S_CKR_RLP_SHIFT)
-- 
1.9.1